Question

Some software (such as SPSS) requires that ANOVA data be stacked and coded. Some software works with both stacked and unstacked data, and some (such as the TI-84) requires unstacked data. Go back to the information given in Exercise 11.8. Stack and code the data. For codes, use 1 for Denver, 2 for Houston, and 3 for Cleveland.
In exercise Gas Prices: Three More Cities Random samples of gasoline prices were obtained in three more cities and are shown in the table.